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Why are side-effects modeled as monads in Haskell?
... been known that a monad can model interpretation for a very long time (at least since "Topoi: A Categorical Analysis of Logic). On the other hand, it wasn't possible to clearly express the types for monads until strongly typed functional languages came around, and then Moggi put two and two togeth...
When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]
...er
IRC, XMPP, OSCAR, MSN clients and servers
In this last department, at least, Twisted seems a clear winner for built-in functionality. And all this, in a package just over 2 megabytes!
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Python __str__ versus __unicode__
...ounter will contain Unicode eventually. So for any new apps, you should at least provide __unicode__(). Whether you also override __str__() is then just a matter of taste.
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Xcode Project vs. Xcode Workspace - Differences
...ere’s no way/definition of building a project, so every project needs at least one target in order to be more than just a collection of files and settings.
Select one of the project’s targets to run
In a lot of cases, projects are all you need. If you have a dependency that you build from so...
How to prevent Browser cache for php site
...th lowest maintenance burden, most accurate/reliable behavior) is both the least voted for, and dismissed in a single comment on such flimsy and unrealistic grounds.
– amcgregor
Jun 26 at 13:29
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Is there a typical state machine implementation pattern?
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Very nice way to get started, at least beginning point for me. One remark, the first line of run_state() has a naughty "." that shouldn't be there.
– Atilla Filiz
Jun 22 '10 at 14:29
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Regular cast vs. static_cast vs. dynamic_cast [duplicate]
...e object must be polymorphic. That is, the class must define or inherit at least one virtual function. This is because the compiler will only generate the needed run-time type information for such objects.
Dynamic cast examples
In the example below, a MyChild pointer is converted into a MyBase poi...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
...ent you made, and when you understand the difference, you'll understand at least one set of reasons why you can't just say "use PyPy". It might sound like I'm nit-picking, but understanding why these two statements are totally different is vital.
To break that down:
The statement they make only a...
E731 do not assign a lambda expression, use a def
... return x + offset (i.e., a simple function defined on a single line)? At least with flake8 I do not get complaints about blank lines.
– DocOc
Aug 22 '19 at 10:50
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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
I first noticed in 2009 that GCC (at least on my projects and on my machines) have the tendency to generate noticeably faster code if I optimize for size ( -Os ) instead of speed ( -O2 or -O3 ), and I have been wondering ever since why.
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